大约有 23,000 项符合查询结果（耗时：0.0319秒） [XML]
Converting string to numeric [duplicate]
...nt as.numeric to do with these values?
In read.csv, try using the argument stringsAsFactors=FALSE
Are you sure it's sep="/t and not sep="\t"
Use the command head(pitchman) to check the first fews rows of your data
Also, it's very tricky to guess what your problem is when you don't provide data. A mi...
Working with UTF-8 encoding in Python source [duplicate]
...f-8 -*-
....
It is described in the PEP 0263:
Then you can use UTF-8 in strings:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
u = 'idzie wąż wąską dróżką'
uu = u.decode('utf8')
s = uu.encode('cp1250')
print(s)
This declaration is not needed in Python 3 as UTF-8 is the default source e...
How can I trim all strings in an Array? [duplicate]
...ask another question. This answer was only about an array that consists of strings exclusively.
– zerkms
Mar 6 '15 at 21:45
|
show 3 more co...
Getting a Custom Objects properties by string var [duplicate]
...
Because in this comment "thing" is a string (its surrounded by quotes).
– Rob
Oct 19 '16 at 8:11
...
Inserting a string into a list without getting split into characters
I'm new to Python and can't find a way to insert a string into a list without it getting split into individual characters:
...
python .replace() regex [duplicate]
...t using regular expression use the re.sub function:
sub(pattern, repl, string[, count, flags])
It will replace non-everlaping instances of pattern by the text passed as string. If you need to analyze the match to extract information about specific group captures, for instance, you can pass a f...
Detecting Windows or Linux? [duplicate]
.../kiuz/816e24aa787c2d102dd0
public class OSValidator {
private static String OS = System.getProperty("os.name").toLowerCase();
public static void main(String[] args) {
System.out.println(OS);
if (isWindows()) {
System.out.println("This is Windows");
} ...
Strange behavior for Map, parseInt [duplicate]
...
parseInt receives two arguments: string and radix:
var intValue = parseInt(string[, radix]);
while map handler's second argument is index:
... callback is invoked with three arguments: the value of the element,
the index of the element, and the A...
Remove a prefix from a string [duplicate]
...e behavior of the new function is exactly as in this answer (returning the string unchanged if it does not start with prefix)
– Elazar
May 27 at 23:50
...
How to do integer division in javascript (Getting division answer in int not float)? [duplicate]
... Normally parseInt() is a better choose to get integer part of number or string.
– tnga
Apr 4 '16 at 9:32
...